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1 临床资料 患儿,男,4岁7个月,因四肢驰缓性瘫痪5小时急症入院。体检:体温36℃,神志清,精神好,颈软,活动自如,心率80次/分,偶有早搏,心音低钝,双上肢肌力Ⅲ级,双下肢肌力Ⅰ级,膝、跟腱反射减弱。血清钾2.85mmol/L。心电图:V_(1～3)、U>T,染色体检查未见异常。诊断:低血钾型周期性麻痹。用氯化钾0.2g/kg1次内服,30分钟再服1次,静脉滴入0.5％氯化钾100mg/kg和胰岛素8~μ治疗,8小时患儿肢体瘫痪恢复,血清钾3.75mmol/L,心电图U波消失。本次发病后20天再次发作1次,经1次口服氯化钾0.2g/kg后4小时恢复。
1 Clinical data Children, male, 4 years and 7 months, due to limbs flaccid paralysis 5 hours emergency admission. Physical examination: body temperature 36 ℃, clear consciousness, good spirit, soft neck, mobility, heart rate 80 beats / min, occasional premature beats, low heart sound blunt, upper extremity muscle strength Ⅲ, lower extremity muscle strength Ⅰ, knee, Achilles tendon Reflex diminished. Serum potassium 2.85mmol / L. ECG: V_ (1 ~ 3), U> T, chromosomal examination showed no abnormalities. Diagnosis: hypokalemic periodic paralysis. With potassium chloride 0.2g / kg 1 oral, 30 minutes and then served 1 times, intravenous infusion of 0.5% potassium chloride 100mg / kg and insulin 8 ~ μ treatment, 8 hours recovery of children with paralysis, serum potassium 3.75mmol / L , U wave disappeared ECG. 20 days after the onset of attack again 1 times, after 1 oral potassium chloride 0.2g / kg recovery after 4 hours.